Title :
Ultrasensitive terahertz waveguide modulators using graphene metamaterials
Author :
Khromova, Irina ; Andryieuski, Andrei ; Lavrinenko, Andrei
Author_Institution :
Public Univ. of Navarra, Pamplona, Spain
Abstract :
We study terahertz-infrared electromagnetic properties of multilayer graphene-dielectric metamaterial and present novel waveguide-based devices: modulators with high modulation depth (> 38 dB at 0.07 eV graphene´s Fermi energy change) or extreme sensitivity (modulation depth of > 13.2 dB at 0.001 eV Fermi energy variation), and tunable passband filters (10% central frequency shift per 0.004 eV Fermi energy change).
Keywords :
band-pass filters; graphene; modulators; multilayers; terahertz metamaterials; terahertz wave devices; C; modulation depth; multilayer graphene-dielectric metamaterial; terahertz-infrared electromagnetic properties; tunable passband filters; ultrasensitive terahertz waveguide modulators; waveguide-based devices; Dielectrics; Graphene; Metamaterials; Modulation; Nonhomogeneous media; Optical waveguides;
Conference_Titel :
Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2014 8th International Congress on
Conference_Location :
Lyngby
Print_ISBN :
978-1-4799-3450-8
DOI :
10.1109/MetaMaterials.2014.6948634
